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Annelids are segmented worms.
Spinal Cord
The cylindrical bundle of nerve fibers and associated tissue that is connected to the brain at the brainstem and runs down the back, encased in the spinal column.
Sensation
Sensation is the process by which sensory receptors and the nervous system receive and represent stimuli from the environment, serving as the foundation for perception.
Pain Receptors
Specialized nerve endings that transduce pain stimuli into nerve signals that are interpreted by the brain as the sensation of pain.
Anticipation
The act of expecting or predicting something to happen based on prior knowledge or cues.
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